Metal feeder for linotype machines



Feb. 21, 1928.

J. H. w. KNOOP METAL FEEDER FOR LINOTYPE MACHINES Filed May '17, 192:

6 Sheets-Sheet l J. H. W. KNOOP METAL FEEDER FOR LINOTYPE MACHINES Feb. 21, 1928.

6 Sheets-Sheet 2 Filed May 17, 1923 zggz.

l &1

Feb. 21, 1928. E 1,660,268

J. H. w. KNOOP METAL FEEDER FOR LINOTYPE MACHINES Filed May 17, 1923 6 Sheets-Sheet 3 Feb. 21, 1926. 1,660,268

J. H. W. KNCOP METAL FEEDER FOR LINOTYPE MACHINES I File May 17, 1923 6 sheets-Sheet 4 Feb. 21, 1928. 1,660,268

J. H. W. KNOOP METAL; FEEDER FOR LINOTYPE MACHINES Filed May 17, 1923 6 Sheets-Sheet 5 METAL FEEDER FOR LINOTYPE MACHINES Filed May 17, 1923 6 Sheets-Sheet 6 I W /J 1 Q2 6 r Patented Feb. 21, 1928.

UNITED STATES JOHN H. w. moor, or HIGEYLANDVPARK, emamvmm.

METAL FEEDER FOB'LINOTYPE MACHINES.

Application filed May 17,

One object of my invention isto provide mechanism for feeding pig leadtothe pot of a linotype, or similar, machine, when: the levelof the molten metal in, the pot is. lowered. f e A further object of the invention is to feed the metal pig-and to hold the'metal firmly in position after the mechanism has fed it a certain distance. V v 3 The invention also relates to certain d'e 'tails, which will be fully described herein after, reference being had to: the accom-z panyingdrawings, in which: 7 i 1 i :Fig; 1 is, a side. view, partly in section, of themetal pot of a'linotype machine, showing my improved mechanism for feeding-pig.

metal into the pot;

Fig. 2 'isa. detached side view-"of the feeding' mechanism;

Fig. 3 is a vertical sectional view'onthe. line 3-'-3, Fig. 4, showing the pig engaged by the pivoted dog; Fig. 4 ,is an end View; 7 Fig.5 isa plan view;

Figs. 6 and 7 are detached perspective views illustrating the device Y Fig. 8 isa viewsimilar to. Fig. 3 showing the pivoted dog out of engagement with the pig and the-sliding dog in engagement'wit-h said: pig; andc 1 w Fig. 9 is another viewshowing 'theasliding dogmoving down with'the pig; 7 3

Referring to the drawings, 1' s asmeta'l pot of a linotype machine having vanyfout-let opening- 2-.. This pot is reciprocated in: the

direction. of the double arrow, Fig. 1, by'the mechanism of the machine. 3 is the cover of the pot, in which is an opening 4. 5' is the base of my improved metal feeder having'a trough-shaped guide 6 for the metal pig shown at a, Fig. 1. The position of the trough-shapedguide 6 is indicated properly in Fig. 1. It is slightly inclined as shown in. said figure so that the pig will slide when released by the mechanism.

Mounted" on a rock shaft 7 is a" dog 8, which is arranged to engage the pigw and hold it in positionafter each feeding operation. This rock shaft is adapted tobearings in the lower portion of the base 5 of the feeder. Secured" to the rock shaft is: an arm 9 having a forkedend 10. Pivoted at ll to a bracket 12 on the guide is a lever 13 havinga double forked arm 14 that isarranged t'o mesh with the forked end 10"of the arm 9; This lever has an arm 15' notched'at-16 1923'. Serial N0. 639,566.

to be engaged by an arm- 17 pivoted at-18 to afixedpoint. The lever 13 has a third arm 19 to which'the: spring 20 is: attached.

This spring is also attached toa bracket 21: onthe guide; The tendency of this lever is to move-the arm to the position shown in Fig. 21 after it has been moved by engaging the end of the arm 17. This endof the. arm: 17 is beveled ,,asshown-clearly in Fig. 2.

22 desi nates a standard secured. to the base 5-. .ivoted to the standard, at 23",-v is 'a-.two'-armedi lever 24. Onearm 25 of this lever is slotted at 26} Mounted on the lever is a sliding; dog 27 having a: lowertooth 28 and. an. upper tooth29. These teeth are arranged. to engage the pig and" to allowit to feed downward under. controh The sliding dog has a projection- 30' that passes through the slot 26 and it has a pin 31: holding itin position. "The arm" 32 of the lever' extends to the standard 22.- ;The arm 41 of the lever 39iextendsithrough a :slot. 42 in a -plate 43 secured to the arm17, Fig.v The arm- 38 is shaped so as torestrupon theenda 44' of the arm-t33 whenthe pot is movedtowards the left, as shown by dotted lines in Fig;

2, and:v in Figs;- 8 and 9;. due to. the: fact that the: arm 17ismounted on a fixed pivot; As the mechanism is; moved. towards the left, the lever; 39" is turned? on: its pivot to the point indicated by dotted line's.

45 designatesaz spring. One endt-ofthis spring: extends into a hole 46 in "the arm 33.

Attacheditoi the other end of the spring is a link 47, which engages a cross bar 48. on

the sliding dog 27!. 49 designates afloat attached to a' rod 5O; passing through the base 5 and through a'bearing' 51 on the bracket 12 of the guide 6. On the upper end of the rod150iis ahead 52; which rests under thel'armi'li'fi as clearly. shown. in" Fig.

1, so that, when the" metal in thepot 1 is at the proper levelg. the-head 52 holds the arm 17' clear of the end of the arm 15 of the lever 1'3;

The mechanism,- when the arm 17- is in this position, will not feed the metal. When v the metal inthe pot is lowered, the float is tends to raise the lever 33. e

movement is stopped by the portion 44: of the lever coming in contact: with the arm 38 which the above'operation is repeated. w

tooth 28 of the sliding 'dog is lIl'COIltELCb with the pig, the slidingdog travels downward with the pig, and, as the slot is atan angle in respect to the ig, the tooth'is forcedinto the pig, and at the sametime,

the lever 24 is turned on its pivot, compress ing the spring 36 until the arm 32 of the lever comes in contact with the arm 33.

This movement'causes the tooth 29-to en gage the pig and the tooth 28 to recede from The movement of'the sliding'dog clownwards places tension on the spring and The lifting of the lever 39; When the pot is movedto the right, the lever 39 is moved clearing the portion 4a of'the arm 33 and comingxin contact with the hooked extension 37, moving the mechanism carryingthe sliding dog clear of the pig'and allowing the spring 36 to retractthe dog to its normal position. I In the meantime, the spring 20 has moved the lever 13 in the direction of the arrow, Fig. 2, and has forced the dog 8 into engagement with thepig so that thedog will hold the pig in proper position until the level of themolten metalzin the pot recedes,- after When the metal pig is first introduced in to the machine, it rests on the dog 8. When the pot 1 is in motion, the'pig is fed inter mittently into the pot being engaged by the teeth of the sliding dog and then by the dog. 8. until. it enters the molten metal in the pot. When the metal has. reached .a predetermined height, the feeding vmechanism is discontinued and the pig is held positively by the dog 8.

While my invention is especially'designed for feeding pig'metal to a-metal vpotnof a linotype machine, it will be understood that itcanbe used for feeding metal'to other machines used for like purposes, where the pot is moved towards and from a moldin making type and type slugs Iclaim: 1. In ametal feeder for 'linotype and like machines having a movable pot and a guide for the metal pig and a dog for holding the metal in the guide, the combination of a feeding dog for controlling the movement of the pig; and means for allowin' the feeding dog to move with. the pig, t efeeding mechanism being controlled by, a float when the metal in the pot is below the normal level. 2. In a metal feeder for linotype and like machines having a movable pot for molten metal, and "a; guide for pig metal located above the potand provided with a pivoted dog for holding the pig in position in which.

it is adjusted, and also provided with means forreleasing the dog when the metal in the pot is below the normal level, of a feeding dog arranged to move with the pig as the pig is fed into the pot; and mechanism for controlling the dog for, feeding'the metal a given-distance while the pivoted dog is out;

of engagement with the pig, with affloat' which controls both mechanisms. r

3. In a metal feeder for linotype'and like machines having a pot for molten-metal and 'a guide for the metal pig and provided with a'pivoted' dog arranged to hold the pig in the position in which it is adjusted, and also provided with; means for guiding the dog, with a sliding feeding dogarrangedto' travel with the pig as it is movedtowards the; i pot, said feeding doghaving teeth arranged F to engage the pig during the feeding operation, said parts being in combination with afloat which controls the mechanism which causes the pivoted dog to release the pig and to allow the'sliding dog to" feed the pig into the pot, the pivoted dog holding the pig 1n the'position in which it is adjusted.

pot; a base plate secured thereon; a guide for 4. The combination of amovablemelting,

pig metal mounted on the base plate; a rock H shaft mounted'in the base; a dog mounted on therock shaft and arranged to engagethe pig metal;an arm on the roc pivoted to a bracket on the llldi, and engaging the arm, one arm of the lever being in thepath of anactuating arm pivoted at a k shaft; a lever fixed point; a floatfor raising and lowering the actuating arm; a pivoted lever; a sliding dog :thereon' having two teeth arranged to engage the pig; a spring. for retracting the dog; a standard; a lever pivoted -.to. the standard and arranged to be moved into the path of an arm pivoted to the first mentioned lever so as to limit the movement "ofthe' lever that carries thesliding dog so that first the lower toothwill engage the pig and then the upper tooth of the said dog, said pivoted lever,fwhich is mounted on the standard, being controlled by the actuating. arm

in order to cause the sliding'dog to be re V leased from the pig after the pivoted dog has engaged the'pig; and means for returning the sliding dog to its normal position.

5. The combination of a movable metal pot; a base plate mounted on the potya guide projecting from the base'plate in mounted in thebase plate; a dog-mounted on the rock shaft and arrangedto engage and hold the pig in the position in which it is adjusted; an arm on the rockashafthaving which the metal pig slides; a rock shaft Y a forked end, said guide having a bracket;

a three-armed lever pivoted to the bracket,

one arm of said lever having a double fork engaging the forked arm a spring attached to the second arm; a pivoted actuating arm, the third arm of the lever extending into the path of the actuating arm when the said actuating arm is lowered; a float controlling the position of the actuating arm; a standard on the base; a lever pivoted to the standard and having a slideway; a sliding feeding dog mounted on the slideway of the said lever, said dog having two teeth arranged to engage. the pig and to allow it to feed downward; an arm pivotally mounted on the lever; a spring between said arm and an arm of the lever; a spring for retracting the sliding feeding dog; and a lever pivoted to the upper end of the standard and arranged to be moved by the actuating arm into the path of the pivoted arm; or to move the pivoted arm and the pivoted lever, carrying the sliding dog, away from the pig, the sliding feeding dog engaging the pig when the pivoted dog is clear thereof.

. JOHN H. WV. KNOOP. 

